Rearrangement of microtubule polarity orientation during conversion
... was hard to identify the original dendrite among the complicated network of processes in old cultures, we could find one example of the original dendrite that elongated to form an axon after 3 days of culture. Almost all microtubules were plus end-distal in the most proximal region of the original de ...
... was hard to identify the original dendrite among the complicated network of processes in old cultures, we could find one example of the original dendrite that elongated to form an axon after 3 days of culture. Almost all microtubules were plus end-distal in the most proximal region of the original de ...
Horizontal Interactions in Cat Striate Cortex: 1. Anatomical Substrate
... FB was dissolved at a concentration of 5 % in distilled water, DY at a concentration of 2% in distilled water and FG was dissolved at a concentration of 3 % in 0.2 M phosphate buffer (PB) and injected in amounts of 500 nl. RBs were applied via Hamilton syringe in amounts of 100 nl. In most cases the ...
... FB was dissolved at a concentration of 5 % in distilled water, DY at a concentration of 2% in distilled water and FG was dissolved at a concentration of 3 % in 0.2 M phosphate buffer (PB) and injected in amounts of 500 nl. RBs were applied via Hamilton syringe in amounts of 100 nl. In most cases the ...
Laminar Selectivity of the Cholinergic Suppression of Synaptic
... output to be formed by self-organization of the synapses in s. l-m. In keeping with physiological evidence showing that synapses in s. l-m have a much weaker influence than synapses in s. rad (Andersen et al., 1966; Doller and Weight, 1982; Yeckel and Berger, 1990; Colbert and Levy, 1992), each syna ...
... output to be formed by self-organization of the synapses in s. l-m. In keeping with physiological evidence showing that synapses in s. l-m have a much weaker influence than synapses in s. rad (Andersen et al., 1966; Doller and Weight, 1982; Yeckel and Berger, 1990; Colbert and Levy, 1992), each syna ...
A computational account for the ontogeny of mirror neurons via
... In the early 1990s, mirror neurons were discovered in the ventral premotor cortex of the macaque monkey (Di Pellegrino et al., 1992). These neurons fired both when the monkeys grabbed an object and when they watched another primate grab that same object. Mirror neuron-like activity has been observed ...
... In the early 1990s, mirror neurons were discovered in the ventral premotor cortex of the macaque monkey (Di Pellegrino et al., 1992). These neurons fired both when the monkeys grabbed an object and when they watched another primate grab that same object. Mirror neuron-like activity has been observed ...
On the Relationship Between Entropy and Meaning in Music: An
... listener is not directly observable. As such, I will consider tension as it is normatively described by traditional music theoretical analysis. The analytical procedure described below has been replicated with a variety of corpora, including Bach chorales, Chopin piano preludes, and Schönberg’s Pie ...
... listener is not directly observable. As such, I will consider tension as it is normatively described by traditional music theoretical analysis. The analytical procedure described below has been replicated with a variety of corpora, including Bach chorales, Chopin piano preludes, and Schönberg’s Pie ...
Piracetam and other structurally related nootropics
... Almost thirty years have now passed since the discovery of the piracetam-like nootropics. The term nootropiC92794,95 was coined by Giurgea in 1972, from Greek BOOS(~00s) (mind) and Greek tropos (T~OTOS) (turn), to describe the then netily discovered properties of these compounds: (1) enhancement of ...
... Almost thirty years have now passed since the discovery of the piracetam-like nootropics. The term nootropiC92794,95 was coined by Giurgea in 1972, from Greek BOOS(~00s) (mind) and Greek tropos (T~OTOS) (turn), to describe the then netily discovered properties of these compounds: (1) enhancement of ...
The Neurons of the Medial Geniculate Body in the Mustached Bat
... The neurons in the medial geniculate body were studied in Golgi preparations from adult mustached bats (Pteronotus parnellii). Their somatic and dendritic configurations were compared with those of cells in other, nonecholocating mammals. A second goal was to use the thalamic nuclear subdivisions de ...
... The neurons in the medial geniculate body were studied in Golgi preparations from adult mustached bats (Pteronotus parnellii). Their somatic and dendritic configurations were compared with those of cells in other, nonecholocating mammals. A second goal was to use the thalamic nuclear subdivisions de ...
Anatomic Studies on the Superior Colliculus
... of a major spread of axons from the anteromedial zone to cover the whole colliculus. In addition, the further experiment described below offers evidence of an alternative explanation. 3. Each ganglion cell at birth sends axons to both colliculi, and, as synapses form, one of these atrophies. This pr ...
... of a major spread of axons from the anteromedial zone to cover the whole colliculus. In addition, the further experiment described below offers evidence of an alternative explanation. 3. Each ganglion cell at birth sends axons to both colliculi, and, as synapses form, one of these atrophies. This pr ...
Chapter 3
... 1. __________ are the cells in the nervous system that receive, integrate, and transmit information. a. Synapse cells b. Neurons c. Glial cells d. Terminal cells 2. What entity in the brain serves the same function as water on a water slide? a. Glial cells b. Cerebrospinal fluid c. Myelin sheath d. ...
... 1. __________ are the cells in the nervous system that receive, integrate, and transmit information. a. Synapse cells b. Neurons c. Glial cells d. Terminal cells 2. What entity in the brain serves the same function as water on a water slide? a. Glial cells b. Cerebrospinal fluid c. Myelin sheath d. ...
Volitional enhancement of firing synchrony and oscillation
... neuronal activity. Most of them, however, had a bias due to an exclusive focus on the firing rates of individual neurons of neocortices. Neuronal operant conditioning should be used to explore the extent to which synchronous activity in neurons can be volitionally enhanced. Synchronous neuronal acti ...
... neuronal activity. Most of them, however, had a bias due to an exclusive focus on the firing rates of individual neurons of neocortices. Neuronal operant conditioning should be used to explore the extent to which synchronous activity in neurons can be volitionally enhanced. Synchronous neuronal acti ...
Auditory working memory: contributions of lateral prefrontal cortex
... prefrontal cortex (lPFC) as a primary area for visual working memory, while another line of research has found the neurotransmitter acetylcholine (ACh) to be involved. This dissertation used auditory cues and found similar patterns of activity for processing auditory working memory information withi ...
... prefrontal cortex (lPFC) as a primary area for visual working memory, while another line of research has found the neurotransmitter acetylcholine (ACh) to be involved. This dissertation used auditory cues and found similar patterns of activity for processing auditory working memory information withi ...
The Effect of Ischemia on Biogenic Amine Concentrations in
... amines are both neurotransmitters and have potent vasoactive properties, for many years there has been considerable speculation about their influences on the development of injury to the CNS. 1 Many experimental stroke models exist,2"4 and many studies have been conducted in which biogenic amine con ...
... amines are both neurotransmitters and have potent vasoactive properties, for many years there has been considerable speculation about their influences on the development of injury to the CNS. 1 Many experimental stroke models exist,2"4 and many studies have been conducted in which biogenic amine con ...
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... (slow-wave) sleep (4, 19, 207, 240). During large-amplitude EEG slow oscillations, virtually all cell types in the cerebral cortex repetitively switch between two membrane potential states: an up state (where neurons are depolarized at about ⫺65 mV and fire at a low rate) and a down state (where neu ...
... (slow-wave) sleep (4, 19, 207, 240). During large-amplitude EEG slow oscillations, virtually all cell types in the cerebral cortex repetitively switch between two membrane potential states: an up state (where neurons are depolarized at about ⫺65 mV and fire at a low rate) and a down state (where neu ...
Vision in Drosophila - University of Queensland
... are known, but there is no predominant model for how these are integrated, if at all, with other visual cues. Finally, what neuroanatomical clues indicate that flies see different patterns? Unfortunately, unlike motion and color, there are none, neither imprinted on the compound eye’s structure nor i ...
... are known, but there is no predominant model for how these are integrated, if at all, with other visual cues. Finally, what neuroanatomical clues indicate that flies see different patterns? Unfortunately, unlike motion and color, there are none, neither imprinted on the compound eye’s structure nor i ...
Role of the Basal Ganglia in the Control of Purposive - lsr
... often called “parkinsonian mask” (283), which is due partly to the paucity of spontaneous gaze shifts (saccadic eye movements). Parkinsonian patients may make a saccade, on command, to a visual object with little difficulty, yet their voluntary saccades are rare. These facts suggest that the basal g ...
... often called “parkinsonian mask” (283), which is due partly to the paucity of spontaneous gaze shifts (saccadic eye movements). Parkinsonian patients may make a saccade, on command, to a visual object with little difficulty, yet their voluntary saccades are rare. These facts suggest that the basal g ...
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... information has been shown to enhance subsequent retrieval of learned information [30]. Similarly, less DMN suppression is associated with less efficient stimulus processing during attention lapses [51]. In addition, in a set of regions that overlap considerably with the DMN, a weaker signal during ...
... information has been shown to enhance subsequent retrieval of learned information [30]. Similarly, less DMN suppression is associated with less efficient stimulus processing during attention lapses [51]. In addition, in a set of regions that overlap considerably with the DMN, a weaker signal during ...
Eyewitness testimonies: The memory and meta
... the effect of eyewitness discussions with non-witnesses (persons who had not experienced the event) on eyewitness memory and meta-memory realism for the overall information about an event was investigated. The results suggest that discussions of an experienced event may reduce some of the beneficial ...
... the effect of eyewitness discussions with non-witnesses (persons who had not experienced the event) on eyewitness memory and meta-memory realism for the overall information about an event was investigated. The results suggest that discussions of an experienced event may reduce some of the beneficial ...
Neurophysiological and Computational Principles of Cortical
... (slow-wave) sleep (4, 19, 207, 240). During large-amplitude EEG slow oscillations, virtually all cell types in the cerebral cortex repetitively switch between two membrane potential states: an up state (where neurons are depolarized at about ⫺65 mV and fire at a low rate) and a down state (where neu ...
... (slow-wave) sleep (4, 19, 207, 240). During large-amplitude EEG slow oscillations, virtually all cell types in the cerebral cortex repetitively switch between two membrane potential states: an up state (where neurons are depolarized at about ⫺65 mV and fire at a low rate) and a down state (where neu ...
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... B. Stimulus B will produce an action potential of greater magnitude than stimulus A. C. Stimulus B will produce an action potential but stimulus A will not. D. Stimulus A and stimulus B will produce the same response in the neurons. ...
... B. Stimulus B will produce an action potential of greater magnitude than stimulus A. C. Stimulus B will produce an action potential but stimulus A will not. D. Stimulus A and stimulus B will produce the same response in the neurons. ...
Edge of chaos and prediction of computational performance for
... is the number of presynaptic neurons, xi (t) results from the output spike train of the ith presynaptic neuron by filtering it according to the low-pass filtering property of the membrane of the readout neuron,2 and wi is the efficacy of the synaptic connection. Thus wi xi (t) models the time course ...
... is the number of presynaptic neurons, xi (t) results from the output spike train of the ith presynaptic neuron by filtering it according to the low-pass filtering property of the membrane of the readout neuron,2 and wi is the efficacy of the synaptic connection. Thus wi xi (t) models the time course ...
General Cortical and Special Prefrontal Connections: Principles
... far from each other and are architectonically distinct, but they have in common the simplest types of laminar structure (Figure 1c, i, c, ii). Neuronal density per unit volume is often a reliable indicator of type for sensory and association cortices. Other architectonic parameters also help describ ...
... far from each other and are architectonically distinct, but they have in common the simplest types of laminar structure (Figure 1c, i, c, ii). Neuronal density per unit volume is often a reliable indicator of type for sensory and association cortices. Other architectonic parameters also help describ ...
Contrasting early visual cortical activation states causally involved in
... threshold as an indicator of visual cortical excitability, that visual imagery increases the excitability of early visual cortical neurons involved in visual imagery. Specifically, they showed that visual imagery decreased the intensity of TMS required for phosphene induction when the imagined stimul ...
... threshold as an indicator of visual cortical excitability, that visual imagery increases the excitability of early visual cortical neurons involved in visual imagery. Specifically, they showed that visual imagery decreased the intensity of TMS required for phosphene induction when the imagined stimul ...